I learned from previous speed dating events that you should ask the ladies more questions instead of telling them about you.
You can tell them your name, occupation, age, 1 dislike, 1 like (baseball). food (Italian).
Then you should ask them unusual questions:
1/ are you an extrovert or introvert. It makes the ladies think.
2/ Do like to go on romatic vacation with significant other or go alone. At this point, you should watch the woman body language closely. If she looks directly into your eyes and plays with her hair then, she might be interest in you. Other wise, she expects you to ask more questions.
Most importantly, You shouldn't talk too quickly despite the time limit. You must always watch her body language such as the way she moves her hands in holding a pen or a beer, the way she crosses her legs, she plays with her hair using her fingers and if she looks away while she talks to you, it means you lost her interest.